SOLUTION: Factor 4x4 - y2

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Question 83506: Factor 4x4 - y2
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Factor:4x%5E4-y%5E2
Do you see this binomial as the difference of two squares? %282x%5E2%29%5E2+-%28y%29%5E2
The difference of two squares can be factored thus:A%5E2-B%5E2+=+%28A%2BB%29%28A-B%29
Applying this to your binomial:
4x%5E4-y%5E2+=+%282x%5E2%2By%29%282x%5E2-y%29